Is AD 2012-24-10 a recurring Airworthiness Directive?

No — AD 2012-24-10 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2012-24-10 apply to?

AD 2012-24-10 applies to The Boeing Company — models 747-400, 747-400F, 747. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2012-24-10

one-time

Official AD 2012-24-10 · FR doc 2012-29707 · 2012-12-12 · airframe

Airworthiness Directives; The Boeing Company Airplanes

What this AD requires

We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 747-400 and -400F series airplanes. This AD was prompted by multiple reports of integrated display unit (IDU) malfunctions and mode control panel (MCP) malfunctions. This AD requires installing new software, replacing the duct assembly with a new duct assembly, making wiring changes, and routing certain wire bundles. We are issuing this AD to prevent IDU malfunctions, which could affect the ability of the flightcrew to read primary displays for airplane attitude, altitude, or airspeed, and consequently reduce the ability of the flightcrew to maintain control of the airplane.

Which aircraft AD 2012-24-10 applies to

MakesThe Boeing Company

Models747-400, 747-400F, 747

Applies to airplanes identified in Boeing Alert Service Bulletin 747-21A2523, Revision 1, dated October 3, 2011.

Whether AD 2012-24-10 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.

How AD compliance is recorded

A valid compliance record (14 CFR 43.9) states:

Method of compliance — The specific action taken (inspected, replaced, modified) and to what revision.

Date — When the work was done.

Aircraft time — Total time in service / tach at compliance — how recurring next-due is computed.

Signature & certificate — The A&P/IA who returned it to service, with certificate number.

Is AD 2012-24-10 complied with on your aircraft?

Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.

Look up a tail number →Read the full directive (Federal Register)

Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.